Rope friction separator device



Sept. 9 1924.

C. A. PILGER ROPE FRICTION SEPARATOR DEVICE Filed April '7, 1923 anugwto'o (Var/ea A. Pz'lgen V am 9* Patented Sept. 9, 192% CHARLES A. FILE-ER, 01 SCRANTON, PENNSYLVANIA.

RQZE'E FRICTION SEPARATQR DEVIGE.

Application filed April 7, 1923. Serial No. 630,691.

To all whom it may concern:

Be it known that CHARLES A. PILGER, a citizen of the United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, has invented certain new and useful Improvements in Rope Friction Separator Devices; and he does hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to attachments for silk looms, and more particularly to a rope friction separator device.

The object of the present invention is to provide a device of the character indicated which will operate to hold the warp-beam of a silk loom firmly in position; prevent the ropes from getting crossed: and provide a steady friction upon the ropes, eliminating the necessity for the use of powder. and thus prevent scheiers or barry marks in the cloth.

The invention consists in the novel con-' struction arrangement and combination of parts as hereinafter more particularly de scribed and claimed.

One sheet of drawings accompanies this specification as part thereof in which like reference characters indicate similar parts throughout.

Fig. 1 is a fragmentary perspective view showing the warp-beam of the silk loom with the present invention applied.

Fig. 2 is a side elevation of the improved device removed from the loom and partially broken away.

Fig. 3 is a vertical transverse sectional view taken on the lines 3 3 of Fig. 2.

It is now common practice to operate the warp-beam of a silk loom by means of the frictional engagement of a rope spirally wound on a pulley attached thereto. To secure the proper frictional engagement of this rope with the pulley, friction powders are used but these are objectionable and there is also an objectionable tendenc of the rope spirals to cross and thus make the operation of the warp-beam uneven.

In accordance with the resent invention, a semi-cylindrical body 1) is rovided. having formed upon its inner or concave face a plurality of flanges (2) spirally or helically disposed on acommon axis with that of the send concave face,

The outer face of the body (1) is pro vided with a flat bearing surface (5) pref- If desired, the angle bar may be further provided with a slot, (17) adapted to receive a suitable feather to restrict its adjustment relative to the frame of the loom (14).

In operation, the improved device is secured to the frame of the loom as illustrated in Fig. 1, being adiusted both vertically and horizontally relative thereto by.

reason of the slot previously described and with the body disposed over the face of the pulley (15) with the flanges (2) interposed between the successive turns of the rope It will be obvious that the frictional engagement of the device with rope (16) may be adjusted as desired by means of bolts (8) and and it will effectually prevent crossing of the ropes on the pulley.

Having thus fully described my invention, 1 claim:

1. A rope friction separator in combination with a driving pulley of a loom, comprising a concaved body portion provided with a plurality of spaced ribs conforming to and extending; longitudinally upon the concave face of the body.

2. A device as specified in claim 1 with means for adjustably securing the same to the frame of a loom.

3. A rope friction separator in combina tion with a driving pulley of a loom. com-- prising a concaved body, provided with a rib upon its concave face helically disposed relative the axis thereof.

4:. A device of the character described comprising in combination a body having a concave cylindrical face, a bracket adjustably secured to the body and a plurality of spaced parallel helically disposed ribs upon and concentric with the concave face of the body.

In testimony whereof I affix my signature.

CHARLES A. PILGER. 

